Tianjin Langxing NDM/I Series: Providing Dynamic Hybrid Core Equipment for Environmental Water Treatment
In the fields of water and industrial environmental protection, the precise addition and efficient mixing of chemicals directly determine the effluent quality and operating costs. Traditional pipeline mixers and static mixers commonly suffer from problems such as uneven mixing, chemical waste, and fine coagulation of alum flowers in hydraulic fluctuations, low flow rates, or high viscosity flocculant systems. The Tianjin Langxing NDM/I series dynamic mixer provides efficient, low-energy, and stable engineering solutions for sodium hypochlorite addition, flocculant addition, and continuous flocculant preparation through high shear and millisecond level homogenization of the fixed rotor.
NDM/I dynamic mixer: online precise addition of sodium hypochlorite and flocculant
Disinfection and flocculation are the core processes of water treatment technology. Uneven addition of sodium hypochlorite (NaClO) can lead to excessive or insufficient residual chlorine in certain areas, which not only affects disinfection effectiveness but also increases the risk of by-products; Uneven addition of coagulants (PAC, PAM, FeCl ∝, etc.) directly results in fine pulverization of alum flowers, poor flocculation effect, and increased dosing costs. The NDM/I series uses high shear forced dissolution to solve the problem of uniformity in drug dosage from the source:
Sodium hypochlorite instantaneous homogenization: Local enrichment of high shear broken NaClO, residual chlorine fluctuation of ≤± 0.3 mg/L throughout the process, significantly reducing the generation of disinfection by-products (DBPs)
Accurate online injection of flocculants: PAC, PAM, FeCl ∝, etc. diffuse within milliseconds, compact the alum flowers, improve flocculation efficiency by 20-40%, and synchronously decrease the dosage of drugs
Stable mixing can still be achieved under low flow/hydraulic fluctuation conditions, completely solving the pain point of insufficient mixing strength of traditional pipeline mixers at low flow rates
Variable frequency speed regulation+modular fixed rotor, online adjustment of shear strength for changes in raw water quality and quantity, adapting to inflow fluctuations and flexible production under multiple working conditions
Typical applications:
Waterworks: online precise dosing and rapid mixing of sodium hypochlorite, chlorine dioxide, and PAM
Wastewater treatment plant: PAC, PAM, FeCl ∝ dosing before the secondary sedimentation tank/after the biochemical tank
Industrial circulating water: online injection and homogenization of corrosion and scale inhibitors, bactericidal and algicidal agents
Emergency dosing/accident pool: high flow, high-intensity forced mixing under sudden water quality changes
NDM/I dynamic mixer: continuous preparation and maturation of flocculants
The preparation of traditional flocculants, especially high molecular weight polyacrylamide (PAM), relies on large dissolution vessels, long-term stirring, and maturation tanks (2-8 hours of maturation time). This method often has problems such as large equipment footprint, poor batch stability, and incomplete PAM dissolution (fish eyes/micelles). The NDM/I series provides a new solution for continuous preparation of flocculants:
Millisecond level powder liquid dissolution: high shear directly crushes PAM particles, completely eliminating fish eyes and micelles, with a dissolution rate of ≥ 99.5%
Continuous online preparation: powder continuous feeding+dynamic mixing+online maturation, the maturation time is shortened from 2-8 hours to less than 30 minutes, and the equipment footprint is reduced by more than 60%
Polymer chain protection design: adjustable shear strength to prevent mechanical degradation of PAM long chains during mixing, maintaining the molecular weight and activity of the flocculant
Dual adaptation of dry powder and lotion PAM: a set of equipment is compatible with a variety of raw material forms, supporting 0.05% -1% full range online blending
Typical applications:
Continuous preparation of PAM dry powder: online dissolution and maturation of anionic/cationic/nonionic PAM
PAM lotion dilution: online dilution and activation of high molecular weight lotion PAM
PAC/polyaluminum chloride: online dilution and concentration adjustment of liquid PAC
Composite flocculants: online compounding and synergistic enhancement of inorganic and organic flocculants
Sludge conditioning: online injection and homogenization of PAM/polyferric sulfate before sludge dewatering
Tianjin Langxing adheres to the delivery standard of process value, and uses its independently developed NDM/I series dynamic mixer to serve the full range of environmental water treatment scenarios such as tap water, sewage, industrial circulating water, and sludge treatment. It helps customers improve dosing accuracy, reduce drug and energy consumption, and support the fine and continuous operation of water facilities. Looking forward to building a cleaner and more efficient water treatment system with you.